The Super.natural Sierra140 men's sleeveless shirt is a versatile base layer designed for uncompromised freedom of movement and reliable comfort during warmer months or as functional underwear on colder days. It features a slightly fitted cut that precisely follows body movements and a stable round neckline, making it an excellent choice for trail running, cycling, hiking, and casual everyday wear.

The shirt is crafted from the innovative Advanced Wool 140 blend, combining 50% merino wool and 50% polyester. Natural fine merino wool ensures premium thermoregulation, reliably wicks away moisture, and naturally prevents odor build-up, while polyester fibers add durability, exceptional elasticity, and significantly shorten drying time.

With a lightweight knit density of 140 g/m² and a total weight of just 175 g, it is among the brand's lightest models. Precision-crafted flatlock seams ensure chafe-free comfort, while integrated UV protection provides extra reliability during all-day sports activities in the sun.